Cannot Upload file to Amazon. Error: Create Feed: Invalid request Parameter.

This error message typically indicates that there is an issue with your Amazon seller account or that vital payment information is missing. The specific causes could be:

1. Account Problems: Amazon may have detected a problem with your seller account, which is preventing the feed from being created.
2. Missing Payment Information: If there are gaps in your payment information, such as an outdated credit card on file, it can lead to this error.

Solutions

To resolve this issue and successfully use ScanLister, follow these steps:

1. Check Your Seller Central Account.
   
   • Log in to your Amazon Seller Central account.
   • Look for any performance notifications or alerts related to your account. Address any issues or discrepancies.
     
     
2. Review Payment Information:
   
   • Verify that your payment methods, such as credit cards or bank accounts, are up to date and valid. If needed, update this information.
     
     
3. Examine Amazon Notifications:
   
   • In your Seller Central account, check for any notifications from Amazon that might be relevant to your seller account and payment methods.
     
     
4. Contact Seller Support:
   
   • If you've reviewed your account, updated payment information, and addressed any notifications but continue to receive the error, it's advisable to contact Amazon Seller Support. They can provide specific guidance for your situation and help resolve any account-related issues.